Ideal staging branch v2.062-b1 for phobos

Current [dmd2beta.zip](http://ftp.digitalmars.com/dmd2beta.zip
) is based on eec793e18c09cd440d63eead550941625b4701cc.
But, current 'staging' branch does not reflect the fact.

This pull request imports all changes ("v2.061" tag to eec793e18c09cd440d63eead550941625b4701cc) into 'staging' branch.